Question: What was located in the administrative territorial entity of Milan in 1816-1-1?
Paraphrase: What was found in the administrative territorial entity of Milan January 1, 1816?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q490 p:P131 ?s . ?s ps:P131 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1816')) }